Outline pens take advantage of the difference in permeability between metallic and pigment inks. After writing, the highly permeable pigment ink penetrates the paper and the poorly permeable metallic ink stays on the surface, creating a double line effect. The ink of the marker is non-toxic and environmentally friendly, safe for both children and adults. This set of glitter pens is great for making DIY albums, journals, scrapbooks, planners, Christmas cards, birthday cards, petroglyphs and more.

Instructions:

1.Each time before use, must shake the pen to make the metallic ink evenly mixed into the pigment ink

2. Press the tip of the pen on the paper a few times to let the ink flow out.

3. Close the cap immediately after use to prevent the ink from drying out..

Good to know:

- Double line effect: Painting on objects that ink can penetrate, such as paper, scrapbook.

- Single outline colour: Painting on objects that ink can't penetrate, such as plastic, glass.

- Single metal